Trolley-wheel.



Y No. 878,656 PATENTED FEB. 11," 1908.

J. T. MISH'LER.

TROLLEY WHEEL.

APPLIOATION FILED AUG.10,1907.

Wit" mom Johnstown, in the county of Cambria and UNITED STA ES E OFFICE,

JOSEPH T. MISHLER, OF JOliNSTOWN, PENNSYLVANIA.

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Specification of Letters latent.

Patented Feb. 11, 1908.

application filed Au'gnst10,1907l Serial ms. s'saoaa.

I To an 'whom it may concern:

3 Be itlknownuthat'I, Josnrn T. MrsHLER, a citizen of the United States, residing'at State'of Pennsylvania, have invented cer- 1 tain newand. useful Improvements in Trol- Icy-Wheels, of which the following is a specification; reference being had to the accompafiymg awi'n p I y invention relates to improvements in trolley wheels of that class having means for replacing the trolley'wire inthe trolley wire groove, and it consists in the novel construc tion and.- the Combination and arran ement of Clparts hereinafter described and'c aimed. he object of the invention is to provide a -wheel' of this'character having a central trolley wire groove and replacin coves so arranged on the opposite sldes o t e centralgroove that the trolley wire will be quickly and effectively returned to the central one when it leaves the same and so that the trol- 'le wire will be prevented from leavingthe wheel when thecarisba'cked.

'The above and other objects are. attained .in the improved construction illustrated in grooves or depressions 2 rconcentric,with hub tit - tiallyparallel therewith throughout the to inner ends of the side or replacing grooves 6 projections 3 throu h which extends the bore or op ning tfor t e axle or ivot ofthe whee. In the periphery of t e wheel is formed a centrally disposed trolley wire oove 5 which extends continuously around deep. Oneachsideof the central groove 5 are auxiliary or side grooves 6 which are" of less :depthand widthfthan the central or rnaingroove 5 and which extend substan- "major""por-tion of 'the circumference. The

mergelinto' the central or. main groove :5 at diametrically ppQ te'points. as shown at 7 described it of substantially .central one on op osite sides of t t e body of the wheel and is comparatively andthe outer ends of said grooves enclosed by the adjacent ends -'of thewalls 8 between the central and side grooves, which walls merge as at 9 into the rims 10 of the wheel. These ,rims 10 are -continuous and are of greater diameter than the walls or ribs'8 so that there will be no danger of the trolley wire leavin the wheel when the car is moved either in a orward orrearward direction.

From the foregoing it will be seen that owing to the shape and arm ement of the replacing grooves,- there. will e practically no danger of the trolley wire slipping out of the wire groove 5 when the car moves in a,

forward direction and that should the Wire unip into either of the side grooves 6 it will e quickly replaced in the central oove owing to the-merging of the grooves 6 in said groove as at 7 The projection of the rims or flanges 10 of the wheel also tend to lessen the dangenrof' the wire leaving the wheel.

Whenthe car is' backed the: shape of the ends I 7 of the rooves .6, will tendto run the wire into the atterbut there will be little or no danger of the wire leaving the wheel owing to the provision of the rims or flanges 10, which guard the closed outer ends 9 of said grooves 6 as will be readily understood upon reference to the' drawin s. By casting the wheel as be seen that it may be produced at a. comparativel small cost, and that it will be exceeding y stro and durable'and that it will be very'e active inaccomplishing its intended purpose.

Having thus described my invention what U Iclaimis: The herein described trolley wheel formed with acentral bore and recessed ends and havin in its periphery a deep central groove exten side grooves of. less deptlllthanthg e atter an parallel therewit throughoiit their major continuously aroundthe body of- 'portior'is, the in'nere'nd of the side grooves merging into the central groove at diametrically opposite oints and inte ral rims formed at the ends 0 the wheel and extending continuously around the same-said rims having their inner sides inclinedinwardly and ada t-' ed to form-the outer side. walls of said side grooves, said rims being of greater. diameter than the walls between the'centrala'nd side grooves whereby the trolley Wire will be prevented from leaving the wheel when the latter is run in either a forward or backward direction, said rims also being adapt-ed to close the outer ends of said side grooves and toiprojeet outwerdly beyond said ends of the latter, substantially as shown and described.

I In testiimdiiy wheredf I herennte :iffix my presence of two witnesses. JOSEPH T. MISHLER.

signature in the Witnesses; v

ISAAC J. KAUFMAN, FRANK J. lvhsnmm. 

